Try searching for...
SCFBio, IIT Delhi
Formula: C15H12O3 | Mol. Weight: 240.25 g/mol
IUPAC: (2R)-2-prop-1-en-2-yl-2,3-dihydrobenzo[f][1]benzofuran-4,9-dione
CC(=C)C1CC2=C(O1)C(=O)C3=CC=CC=C3C2=O